WIP: Placeholder page for Rainbow Pool pet type

I'm experimenting with a Rainbow Pool ish UI, mainly as a support tool
for exploring and labeling poses—but one we can probably just show to
real users too!

Right now, I just use pet type images as a placeholder, and I polished
up some of the `pet_type_image` API. But we're probably gonna drop
these for a full outfit viewer, now that I think of it.

app/controllers/pet_types_controller.rb

@@ -1,10 +1,28 @@
 class PetTypesController < ApplicationController
 	def show
-		@pet_type = PetType.
-			where(species_id: params[:species_id]).
-			where(color_id: params[:color_id]).
-			first
+		@pet_type = find_pet_type
 
-		render json: @pet_type
+		respond_to do |format|
+			format.html { render }
+			format.json { render json: @pet_type }
+		end
+	end
+
+	protected
+
+	# The API-ish route uses IDs, but the human-facing route uses names.
+	def find_pet_type
+		if params[:species_id] && params[:color_id]
+			PetType.find_by!(
+				species_id: params[:species_id],
+				color_id: params[:color_id],
+			)
+		elsif params[:name]
+			color_name, species_name = params[:name].split("-", 2)
+			raise ActiveRecord::RecordNotFound if species_name.blank?
+			PetType.matching_name(color_name, species_name).first!
+		else
+			raise "expected params: species_id and color_id, or name"
+		end
 	end
 end

app/helpers/items_helper.rb

@@ -14,19 +14,30 @@ module ItemsHelper
     }
 
     Sizes = {
-      face: 1,
-      thumb: 2,
-      zoom: 3,
-      full: 4,
-      face_2x: 6,
+      face:     1, # 50x50
+      face_3x:  6, # 150x150
+
+      thumb:    2, # 150x150
+      full:     4, # 300x300
+      large:    5, # 500x500
+      xlarge:   7, # 640x640
+
+      zoom:     3, # 80x80
+      autocrop: 9, # <varies>
+    }
+
+    SizeUpgrades = {
+      face: :face_3x,
+      thumb: :full,
+      full: :xlarge,
     }
   end
 
   def pet_type_image_url(pet_type, emotion: :happy, size: :face)
     PetTypeImage::Template.expand(
       hash: pet_type.basic_image_hash || pet_type.image_hash,
-      emotion: PetTypeImage::Emotions[emotion],
-      size: PetTypeImage::Sizes[size],
+      emotion: PetTypeImage::Emotions.fetch(emotion),
+      size: PetTypeImage::Sizes.fetch(size),
     ).to_s
   end
 
@@ -246,8 +257,10 @@ module ItemsHelper
 
   def pet_type_image(pet_type, emotion, size, **options)
     src = pet_type_image_url(pet_type, emotion:, size:)
-    srcset = if size == :face
-      [[pet_type_image_url(pet_type, emotion:, size: :face_2x), "2x"]]
+
+    size_2x = PetTypeImage::SizeUpgrades[size]
+    srcset = if size_2x
+      [[pet_type_image_url(pet_type, emotion:, size: size_2x), "2x"]]
     end
 
     image_tag(src, srcset:, **options)

app/views/pet_types/show.html.haml

@@ -0,0 +1,11 @@
+- title "#{@pet_type.human_name}"
+
+%dl
+    %dt Happy
+    %dd= pet_type_image @pet_type, :happy, :full
+    %dt Sad
+    %dd= pet_type_image @pet_type, :sad, :full
+    %dt Angry
+    %dd= pet_type_image @pet_type, :angry, :full
+    %dt Ill
+    %dd= pet_type_image @pet_type, :ill, :full

config/routes.rb

@@ -37,6 +37,7 @@ OpenneoImpressItems::Application.routes.draw do
   end
   resources :alt_styles, path: 'alt-styles', only: [:index]
   resources :swf_assets, path: 'swf-assets', only: [:show]
+  resources :pet_types, path: 'rainbow-pool', only: [:show], param: "name"
 
   # Loading and modeling pets!
   post '/pets/load' => 'pets#load', :as => :load_pet